Can you snorkel in Key Largo today?

Yes. The next good snorkeling window in Key Largo starts Wed 15:00. Around 19% of the next 72 hours are suitable.

What is the best time of day to snorkel in Key Largo?

Snorkel during daylight, ideally in the morning before the wind picks up, and around high slack tide when water is clearest and currents are weakest. SnorkelForecast scores every daylight hour in Key Largo so you can pick the calmest window.

What is the best tide for snorkeling?

High slack tide — within about an hour of the high-tide peak when currents are weakest — is the safest, clearest window. Strong low tides, strong tidal flow near channels or headlands, and large tidal-range days reduce score.

Key Largo Snorkel Report Today

USA · Updated Tue 04:14 (EDT) · Source: Snapshot

The skinny

Go in the best window Report Tue 19:44

Key Largo has a usable snorkeling window around Wed 11:00. The main thing to watch is sea temperature.

Score: 6.2/10

Best time: Wed 11:00

Main risk: Sea Temperature

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

06:44

Sunset

20:11

Water

31.2°C

Max air

29.1°C

Sky

Clear

28% cloud

Good window is available today

Next safe window: Wed 15:00 (19% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Tuesday

❌ poor conditions

Main blocker: Waves

Wednesday

✅ good conditions

Main blocker: Waves

Thursday

✅ good conditions

Main blocker: Sea temperature

Best available hours

Next safe window starts at Wed 15:00.

Why this verdict

Main blockers across the next 72 hours:

Sea temperature (52 hours)
Waves (32 hours)
Darkness (26 hours)

Jellyfish drift risk

Drift estimate from wind, swell, current and warm water.

Low · 32/100

Low peak drift risk around Wed 03:00.

warm water supports seasonal jellyfish activity; surface drift/current is noticeable; local shoreline exposure is not mapped yet.

Sightings override the model: if you see small purple jellyfish with long trailing tentacles, treat them as sting-capable and give them space.

Upcoming high tides

Next early morning high tide: Wed 10:00

Wed 00:00, Wed 10:00, Thu 01:00, Thu 10:00, Fri 02:00

Nearby alternatives in USA

Bahia Honda

97 km away

✅ Good

Looe Key

114 km away

❌ Poor

Dry Tortugas

250 km away

❌ Poor

Crystal River

475 km away

✅ Good

Advanced forecast data

Viewing historical data

Fri 23:00 – Mon 23:00 (EDT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.49 around Sat 09:00; 13 of 24 hours are good, fair, or excellent.

Score trend, higher is better. Excellent ≥ 0.72, good 0.55–0.72, fair 0.35–0.55.

Conditions (24h trends)

Tap a chart to load just that series.

0/24 sampled hours stay at or below 0.36m (range 0.54m to 0.76m).

Wind is at or below 5.4m/s in 2/24 sampled hours (range 4.31 to 7.98m/s).

Tides range from -0.55m to -0.09m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview

Fri 23:00 fair ⚠️ Fair

Sat 00:00 poor ❌ Limited

Sat 01:00 poor ❌ Limited

Sat 02:00 poor ❌ Limited

Sat 03:00 poor ❌ Limited

Sat 04:00 poor ❌ Limited

Sat 05:00 poor ❌ Limited

Sat 06:00 poor ❌ Limited

Sat 07:00 poor ❌ Limited

Sat 08:00 poor ❌ Limited

Sat 09:00 poor ❌ Limited

Sat 10:00 poor ❌ Limited

Sat 11:00 fair ⚠️ Fair

Sat 12:00 fair ⚠️ Fair

Sat 13:00 fair ⚠️ Fair

Sat 14:00 fair ⚠️ Fair

Sat 15:00 fair ⚠️ Fair

Sat 16:00 fair ⚠️ Fair

Sat 17:00 fair ⚠️ Fair

Sat 18:00 fair ⚠️ Fair

Sat 19:00 fair ⚠️ Fair

Sat 20:00 fair ⚠️ Fair

Sat 21:00 fair ⚠️ Fair

Sat 22:00 fair ⚠️ Fair

Sat 23:00 fair ⚠️ Fair

Sun 00:00 poor ❌ Limited

Sun 01:00 poor ❌ Limited

Sun 02:00 poor ❌ Limited

Sun 03:00 poor ❌ Limited

Sun 04:00 poor ❌ Limited

Sun 05:00 poor ❌ Limited

Sun 06:00 poor ❌ Limited

Sun 07:00 poor ❌ Limited

Sun 08:00 poor ❌ Limited

Sun 09:00 poor ❌ Limited

Sun 10:00 poor ❌ Limited

Sun 11:00 fair ⚠️ Fair

Sun 12:00 fair ⚠️ Fair

Sun 13:00 fair ⚠️ Fair

Sun 14:00 fair ⚠️ Fair

Sun 15:00 fair ⚠️ Fair

Sun 16:00 fair ⚠️ Fair

Sun 17:00 fair ⚠️ Fair

Sun 18:00 fair ⚠️ Fair

Sun 19:00 fair ⚠️ Fair

Sun 20:00 fair ⚠️ Fair

Sun 21:00 fair ⚠️ Fair

Sun 22:00 fair ⚠️ Fair

Sun 23:00 fair ⚠️ Fair

Mon 00:00 poor ❌ Limited

Mon 01:00 poor ❌ Limited

Mon 02:00 poor ❌ Limited

Mon 03:00 poor ❌ Limited

Mon 04:00 poor ❌ Limited

Mon 05:00 poor ❌ Limited

Mon 06:00 poor ❌ Limited

Mon 07:00 poor ❌ Limited

Mon 08:00 poor ❌ Limited

Mon 09:00 poor ❌ Limited

Mon 10:00 poor ❌ Limited

Mon 11:00 fair ⚠️ Fair

Mon 12:00 fair ⚠️ Fair

Mon 13:00 fair ⚠️ Fair

Mon 14:00 fair ⚠️ Fair

Mon 15:00 good 🌟 Good

Mon 16:00 good 🌟 Good

Mon 17:00 good 🌟 Good

Mon 18:00 good 🌟 Good

Mon 19:00 good 🌟 Good

Mon 20:00 good 🌟 Good

Mon 21:00 good 🌟 Good

Mon 22:00 good 🌟 Good

Scoring methodology (for technical users)

We score each hour from 0 to 1 using daylight and these weighted components:

Wave height (35%): best below 0.36m, then decreases as it rises.
Wind speed (25%): best below 5.4m/s, lower is better.
Sea surface temperature (15%): best within 20.6°C to 30.4°C.
Tide and currents (15%): best around slack/high-tide windows.
Daylight (10%): visibility and safety gate (outside daylight scores lower).

Detailed hourly data table

Time	Wave (m)	Wind (m/s)	Sea temp (°C)	Status
Fri 23:00	0.74 · high	5.73 · high	31.20 · out of range	fair
Sat 00:00	0.76 · high	5.10 · good	31.20 · out of range	poor
Sat 01:00	0.74 · high	5.45 · high	31.20 · out of range	poor
Sat 02:00	0.74 · high	5.98 · high	31.10 · out of range	poor
Sat 03:00	0.72 · high	4.31 · good	31.10 · out of range	poor
Sat 04:00	0.72 · high	5.66 · high	31.00 · out of range	poor
Sat 05:00	0.74 · high	7.98 · high	30.90 · out of range	poor
Sat 06:00	0.74 · high	6.01 · high	30.90 · out of range	poor
Sat 07:00	0.74 · high	6.15 · high	30.80 · out of range	poor
Sat 08:00	0.72 · high	7.22 · high	30.80 · out of range	poor
Sat 09:00	0.72 · high	7.31 · high	30.70 · out of range	poor
Sat 10:00	0.70 · high	6.88 · high	30.70 · out of range	poor
Sat 11:00	0.70 · high	6.47 · high	30.60 · out of range	fair
Sat 12:00	0.68 · high	6.16 · high	30.60 · out of range	fair
Sat 13:00	0.66 · high	5.98 · high	30.60 · out of range	fair
Sat 14:00	0.66 · high	5.74 · high	30.70 · out of range	fair
Sat 15:00	0.64 · high	6.01 · high	30.70 · out of range	fair
Sat 16:00	0.62 · high	6.12 · high	30.80 · out of range	fair
Sat 17:00	0.58 · high	6.02 · high	30.80 · out of range	fair
Sat 18:00	0.56 · high	5.73 · high	30.90 · out of range	fair
Sat 19:00	0.56 · high	5.66 · high	30.90 · out of range	fair
Sat 20:00	0.54 · high	6.07 · high	30.90 · out of range	fair
Sat 21:00	0.54 · high	7.70 · high	31.00 · out of range	fair
Sat 22:00	0.54 · high	7.18 · high	31.00 · out of range	fair
Sat 23:00	0.52 · high	5.65 · high	31.00 · out of range	fair
Sun 00:00	0.52 · high	4.47 · good	31.00 · out of range	poor
Sun 01:00	0.52 · high	3.47 · good	31.00 · out of range	poor
Sun 02:00	0.54 · high	3.52 · good	31.00 · out of range	poor
Sun 03:00	0.54 · high	4.00 · good	31.00 · out of range	poor
Sun 04:00	0.52 · high	5.00 · good	30.90 · out of range	poor
Sun 05:00	0.52 · high	5.00 · good	30.90 · out of range	poor
Sun 06:00	0.50 · high	4.20 · good	30.90 · out of range	poor
Sun 07:00	0.50 · high	4.41 · good	30.80 · out of range	poor
Sun 08:00	0.58 · high	2.36 · good	30.70 · out of range	poor
Sun 09:00	0.58 · high	3.20 · good	30.70 · out of range	poor
Sun 10:00	0.58 · high	4.33 · good	30.70 · out of range	poor
Sun 11:00	0.58 · high	4.27 · good	30.60 · out of range	fair
Sun 12:00	0.58 · high	4.40 · good	30.60 · out of range	fair
Sun 13:00	0.56 · high	4.24 · good	30.60 · out of range	fair
Sun 14:00	0.56 · high	4.90 · good	30.70 · out of range	fair
Sun 15:00	0.54 · high	4.03 · good	30.80 · out of range	fair
Sun 16:00	0.54 · high	3.95 · good	30.80 · out of range	fair
Sun 17:00	0.52 · high	3.40 · good	30.90 · out of range	fair
Sun 18:00	0.52 · high	3.63 · good	30.90 · out of range	fair
Sun 19:00	0.54 · high	4.00 · good	31.00 · out of range	fair
Sun 20:00	0.54 · high	3.70 · good	31.00 · out of range	fair
Sun 21:00	0.56 · high	3.90 · good	31.10 · out of range	fair
Sun 22:00	0.56 · high	4.03 · good	31.10 · out of range	fair
Sun 23:00	0.58 · high	3.86 · good	31.10 · out of range	fair
Mon 00:00	0.58 · high	4.20 · good	31.10 · out of range	poor
Mon 01:00	0.60 · high	3.95 · good	31.10 · out of range	poor
Mon 02:00	0.60 · high	4.05 · good	31.10 · out of range	poor
Mon 03:00	0.62 · high	4.61 · good	31.00 · out of range	poor
Mon 04:00	0.62 · high	4.16 · good	31.00 · out of range	poor
Mon 05:00	0.64 · high	4.65 · good	30.90 · out of range	poor
Mon 06:00	0.64 · high	5.12 · good	30.90 · out of range	poor
Mon 07:00	0.64 · high	5.22 · good	30.80 · out of range	poor
Mon 08:00	0.66 · high	6.26 · high	30.80 · out of range	poor
Mon 09:00	0.66 · high	5.55 · high	30.80 · out of range	poor
Mon 10:00	0.64 · high	6.74 · high	30.70 · out of range	poor
Mon 11:00	0.62 · high	5.78 · high	30.70 · out of range	fair
Mon 12:00	0.60 · high	4.88 · good	30.70 · out of range	fair
Mon 13:00	0.58 · high	3.86 · good	30.80 · out of range	fair
Mon 14:00	0.58 · high	3.94 · good	30.80 · out of range	fair
Mon 15:00	0.56 · high	3.67 · good	30.90 · out of range	good
Mon 16:00	0.54 · high	3.20 · good	31.00 · out of range	good
Mon 17:00	0.54 · high	3.76 · good	31.00 · out of range	good
Mon 18:00	0.52 · high	3.33 · good	31.10 · out of range	good
Mon 19:00	0.50 · high	3.89 · good	31.10 · out of range	good
Mon 20:00	0.50 · high	4.37 · good	31.20 · out of range	good
Mon 21:00	0.48 · high	4.20 · good	31.20 · out of range	good
Mon 22:00	0.46 · high	4.58 · good	31.20 · out of range	good